Integrating sphere magnetic insensitivity captivity system

An integrating sphere, insensitive technology, applied in the field of magnetic trap system, can solve the problems of affecting the precision and accuracy of atomic clock measurement, unable to eliminate Doppler frequency shift, small number of atoms, etc., to facilitate precise tuning and prolong coherence time. , the effect of small size
CN103763847BActive Publication Date: 2016-03-09SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Publication Date
2016-03-09

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Abstract

An integrating sphere magnetism-insensitive imprisoning system mainly comprises a vacuum cavity, a magnetic field system and an optical path system. The integrating sphere magnetism-insensitive imprisoning system is used for manufacturing high-density and long-coherence-time cold atom sources. According to the integrating sphere magnetism-insensitive imprisoning system, an Ioffe-Pritchard micro magnetic trap is formed through an aligning Helmholtz coil and a single wire, and the magnetism-insensitive atomic state is searched for through a gradient field generated by the micro magnetic trap. The integrating sphere magnetism-insensitive imprisoning system has the advantages of being simple, small in size, low in power consumption, convenient to operate and favorable for forming coherent control researches on the atomic state in an integrating sphere, and a new technology is provided for finally developing small high-accuracy satellite-borne atomic clocks.
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Description

technical field

[0001] The invention relates to a magnetic trap system with miniaturization and low power consumption, in particular to an integrating sphere magnetic insensitivity trap system. The generated gradient field is used to search for magnetically insensitive atomic states, thereby preparing a high-density, long coherence time cold atom source. It has the characteristics of simple device, small size, low power consumption and convenient operation, and provides a better experimental platform for the development of high-precision miniaturized spaceborne atomic clocks. Background technique

[0002] Integrating sphere cooling is a new laser cooling technology proposed for the first time by academician Wang Yuzhu of Shanghai Institute of Optics and Mechanics, Chinese Academy of Sciences. It uses the change of diffuse reflection light field angle to automatically offset the Doppler effect of atoms, which is different from traditional optical sticky groups and magneto-opt...

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